<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <link rel="stylesheet" href="./css/common.css">
    <link rel="stylesheet" href="./css/reset.css">
    <style>
        .kl_wrapper .item{
            float: left;
            height: 541px;
        }
        .kl_wrapper .left-container{
            width: 330px;
            background-color: orange;
        }
        .kl_wrapper .center-container{
            width: 460px;
            background-color: green;
        }
        .kl_wrapper .right-container{
            width: 219px;
            background-color: blue;
        }
        .kl_wrapper .center-container .box{
            float: left;
            box-sizing: border-box;
            width: 230px;
            height: 274px;
            border: 1px solid #e0dddd;
            border-left: none;
        }
        /*.kl_wrapper .center-container .box:nth-child(n+3){*/
        /*    border-top: none;*/
        /*}*/
        .kl_wrapper .center-container .box:nth-child(n+3){
            margin-top: -1px;
        }
    </style>
</head>
<body>
    <div class="kl_wrapper">
        <div class="item left-container">

        </div>
        <div class="item center-container">
            <div class="box">1</div>
            <div class="box">2</div>
            <div class="box">3</div>
            <div class="box">4</div>
        </div>
        <div class="item right-container">

        </div>
    </div>
</body>
</html>